Published in Palaeontology, in 1975, in volume 18, issue 1, pages 41-91
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Published in Palaeontology, in 1983, in volume 26, issue 2, pages 443-453
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Published in Jour Washington Acad Sci, in 1958, in volume 48, pages 113-114
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Published in Jour Washington Acad Sci, in 1958, in volume 48, pages 309
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Published in Jour Washington Acad Sci, in 1958, in volume 48, pages 56-62
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Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 103-105
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Published in Jour Washington Acad Sci, in 1958, in volume 48, pages 153-157
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Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 386-388
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Published in Jour Washington Acad Sci, in 1951, in volume 41, pages 142-146
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Published in Jour Washington Acad Sci, in 1952, in volume 42, pages 154-156
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Published in Jour Washington Acad Sci, in 1951, in volume 41, pages 20-21
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Published in Memoirs of the Queensland Museum, in 1991, in volume 31, pages 460
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Published in Jour Washington Acad Sci, in 1954, in volume 44, pages 27-32
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Published in Journal of The Washington Academy of Sciences, in 1960, in volume 40, pages 338-343
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Published in Veliger, in 1971, in volume 13, pages 275-278
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Published in Madroño, in 1951, in volume 11, issue 1, pages 22-24
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Published in Madroño, in 1973, in volume 22, issue 1, pages 31
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Published in Rhodora, in 1941, in volume 43, issue 512, pages 344-348
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Published in Madroño, in 1941, in volume 6, issue 1, pages 13-15
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Published in Torreya, in 1928, in volume 28, issue 3, pages 53-57
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Published in Annals And Magazine of Natural History, in 1850, in volume 5, pages 381-387
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Published in Victorian Naturalist, in 2010, in volume 127, issue 5, pages 216-217
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Published in Victorian Naturalist, in 2011, in volume 128, issue 6, pages 280
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Published in Zoologica New York, in 1921, in volume 3, pages 137-168
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Published in American Fern Journal, in 1962, in volume 52, pages 132-133
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Published in American Fern Journal, in 1970, in volume 60, pages 119-128
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Published in Palaeontology, in 1971, in volume 14, issue 2, pages 266-293
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Published in Torreya, in 1932, in volume 32, issue 6, pages 147-153
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Published in Victorian Naturalist, in 2013, in volume 130, issue 3, pages 145-148
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Published in Phytologia, in 1971, in volume 21, issue 3, pages 165-195
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Published in Rhodora, in 1957, in volume 59, issue 698, pages 43-44
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Published in American Fern Journal, in 1964, in volume 54, pages 71-73
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Published in Botanical Gazette, in 1918, in volume 65, issue 3, pages 201-226
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Published in Psyche: A Journal of Entomology, in 1935, in volume 42, issue 1, pages 68-72
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Published in The Wilson Bulletin, in 1912, in volume 24, issue 4, pages 197
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Published in Palaeontology, in 1972, in volume 15, issue 3, pages 504-518
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Published in Phytologia, in 1971, in volume 22, pages 71-82
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Published in Phytologia, in 1935, in volume 1, pages 145-150
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Published in Proceedings of The Linnean Society of New South Wales, in 2004, in volume 125, pages 273-276
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Published in Rhodora, in 1968, in volume 70, issue 782, pages 304-306
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Published in Rhodora, in 1941, in volume 43, issue 510, pages 216-219
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Published in American Malacological Bulletin, in 1992, in volume 9, issue 2, pages 107-116
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Published in Psyche: A Journal of Entomology, in 1919, in volume 26, issue 1, pages 1-9
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Published in Psyche: A Journal of Entomology, in 1916, in volume 23, issue 6, pages 173-174
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Published in Psyche: A Journal of Entomology, in 1915, in volume 22, issue 2, pages 50
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